The Palacio de la Isla (Palace of the Island) was built in the 16th century and it currently takes up the space where the New Jewish Quarters' synagogue was located which some have said was located in one of the palace state rooms. The Stars of David in the courtyard commemorate the Jewish presence in these surroundings and the basin with Hebrew inscriptions are some of the elements which serve as a continuous reminder of this final stage of the Hebrew Cáceres collective on the eve of their expulsion.

The Palacio de la Isla (Palace of the Island) was built in the 16th century and it currently takes up the space where the New Jewish Quarters' synagogue was located which some have said was located in one of the palace state rooms. The Stars of David in the courtyard commemorate the Jewish presence in these surroundings and the basin with Hebrew inscriptions are some of the elements which serve as a continuous reminder of this final stage of the Hebrew Cáceres collective on the eve of their expulsion.

The palace is a true gem of the Renaissance and its shields and inscriptions evoke the founding family the Blázquez-Mogollón who inscribed on the stone the motto moderata durant nobilitat animus non acta parentumor the classic uanitas uanitatum et omnia uanitasin defence of their lineage against a local branch of the family which refused to acknowledge this. However, the name of the palace can be put down to the its 18th century owners the Marquis of the Island. After serving until 1983 as the head offices of the Provincial Archive and State Library, after recent remodelling it is now used as the Municipal Historic Archive and a multipurpose cultural centre.